<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>Title</title>
    <link rel="stylesheet"href="../CSS/thirdcss.css" type="text/css">
    <script type="text/javascript" src="../JS/thirdJs.js"></script>
</head>
<body>

<div id="Outermost">
    <button id="Button" value="添加按钮" onclick="AddDiv()">添加按钮</button>
</div>

</body>
</html>